conjf, conj, conjl

 

C

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Complex number arithmetic

Types and the imaginary constant
complex Complex_I CMPLX	imaginary Imaginary_I I
Manipulation
cimag creal carg	conj cproj
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cexp clog	cpow csqrt
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ccos csin ctan	cacos casin catan
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ccosh csinh ctanh	cacosh casinh catanh

 

Defined in header <complex.h>
float complex       conjf( float complex z );		(since C99)
double complex      conj( double complex z );		(since C99)
long double complex conjl( long double complex z );		(since C99)

Computes the complex conjugate of z by reversing the sign of the imaginary part.

Parameters

z

-

complex argument

Return value

The complex conjugate of z.

Example

Run this code

#include <stdio.h>
#include <complex.h>
 
int main()
{ 
    double complex z = conj(1.0 + 2.0*I);
    printf("%f%+fi\n", creal(z), cimag(z));
 
    return 0;
}

Output:

1.000000-2.000000i